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vlada-n [284]
3 years ago
15

Explain why iron, cobalt, and nickel are not in the same group of elements

Physics
2 answers:
neonofarm [45]3 years ago
6 0
Actually, iron, cobalt, and nickel ARE all in the same group of elements. If you look on this attachment, you will see iron, nickel, and cobalt are all medals. I circled it for you.

lisabon 2012 [21]3 years ago
3 0

Answer:

First, remember the distribution of the groups and the periods in the periodic table (see attached file)

The group is observed vertically throughout the table

And the period is observed horizontally throughout the table

As we can see in the table (see attached file), iron, cobalt and nickel are located next to each other horizontally so they belong to the same period and not to the same group

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kari74 [83]

Answer:

mass is 6.97 pounds

Explanation:

given data

volume = 3.1 liters

density = 1.020 g/ml = 1.02 kg/l

to find out

How many pounds of blood plasma

solution

we know mass formula from density that is

density = mass / volume

so

mass = density × volume    ...............1

so put all value to get mass

mass = 1.02 × 3.1

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6 0
3 years ago
10 points!! If you help!!!
marta [7]

For Mass

K.E = (1/2*mv^2)

Explanation:

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4 0
2 years ago
The external cover of aeroplane is made up of aluminium instead of iron. Why?
Vlada [557]
The same volume of aluminum has a smaller mass than iron and aircrafts better be light.
3 0
3 years ago
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Comic-book superheroes are sometimes able to punch holes through steel walls. (a) If the ultimate shear strength of steel is tak
Katena32 [7]
Thank you for posting your question here at brainly. I hope the answer will help you. Feel free to ask more questions here.

shear stress is the measure of the material's resistance to cause "sliding" motion of its layers. 
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3 years ago
A man pushes a lawn mower on a level lawn with a force of 186.5 N. If 3.8% of this
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Explanation:

The force is 186.5 N.  3.8% of the force is directed downward.  So the vertical component of the force is:

Fᵧ = 0.038 (186.5 N)

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The horizontal component is found with Pythagorean theorem:

F² = Fₓ² + Fᵧ²

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W = Fd

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W = 1379 J

Round as needed.

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